Motor-vehicle.



D. J. MGOSKER.

MOTOR VEHICLE.

APPLICATION FILED 001'. 4, 1909.

Patented Aug. 15, 1911.

INVENTOR Jamel :Zfilc. 0a1 en ATTORNEY coLqMmA PLANOGRAPH 20.,WASHINGTON. n. u.

nrr rs DANIEL J. MCOSKER, OF PROVIDENCE, RHODE ISLAND.

Specification of Letters Patent.

Patented Aug. 15, 1911.

Application filed October 4, 1909. Serial-No. 520,986.

To all whom it may concern:

Be it known that I, DANIEL J. MCOSKER, a citizen of the United States,residing at the city of Providence, in the county of Providence andState of Rhode Island, have invented certain new and useful Improvementsin Motor-Vehicles, of which the following is a specification, referencebeing had therein to the accompanying drawing.

This invention relates to a power transmission and controlling mechanismfor motor driven vehicles, and has for its object to reduce the expenseof constructing the vehicle by simplifying the parts; to eliminate thenecessity of using the differential gearing; and to increase the ease ofcontrolling the vehicle by reducing the number of controlling levers tobe manipulated by the operator.

An essential feature of my improved construction is the arrangement ofcams or fingers connected to the steering Wheel post whereby either oneor the other of the two friction driven disks is withdrawn from contactwith the driving disk by the turning of the steering wheel as thevehicle is being guided either to the right or to the left around acurve.

With these and other objects in view, the invention consists of certainnovel features of'construction, as will be more fully described andparticularly pointed out in the appended claims.

In the accompanying drawings: Figure 1 is a plan view of the chassis ofa motor vehicle equipped with my improved power transmitting andcontrolling mechanism. Fig. 2- is a side elevation of the same.

Referring to the drawings, 1 designates the frame or chassis of thevehicle which is mounted on four wheels, of which 2-2 are the reartraction or driving wheels and 33 are the forward or steering wheels. Ipreferably employ an internal combustion engine, the crank shaft 4 ofwhich is shown in the forward end ofthe frame, said shaft being coupledto the main shaft 5 by a knuckle joint, not shown, or other suitablemeans. This main shaft leads back between the side frames and receivessupport at its rear end in the bearing 6. On this driving shaft ismounted the driving friction wheel 7 the same being adapted to be movedalong the shaft over the key 8 by means of the hand lever 9 through thelink 10, lever 11 and link 12. This lever may be retained in any desiredposition by the usual locking latch, not shown, engaging the teeth onthesegment 9 At 13 and 14 are two friction faced disks which are slidablymounted on keyways (not shown) in shafts 15 and 16, and which shafts aremounted on suitable bearings, and said shafts are adapted to be drivenby contact with the face of driving disk 7 against which they are heldby the yielding pressure of springs 17 and 18. Shaft 15 transmits itspower to the rear wheel 2 through the pulley 19, belt 20, and rearpulley 21, while shaft 16, in order to reverse its direction of rotationand drive its rear wheel 2 in the proper direction, transmits its powerfrom the gear 22, first through the intermediate gear 23 and thenthrough thepulley 24, belt 25 to the rear pulley 26. Sprockets andsprocket chains are preferably employed instead of the pulleys and beltsabove described.

In order to disconnect the engine and its driving disk from the drivingwheel to stop the vehicle I have provided a simple and effectivemechanism comprising a foot lever 27 mounted on a rotatable shaft 28. Onthis shaft is fixed a pair of crank arms 29 and 30 which are connectedthrough the rods 31 and 32 to knee levers 33 and 34, respectively, eachof these levers being provided with a leg 35 and 36, respectively, whichextend into corresponding grooves 37 and 38 in the disks 13 and 14 madeto'receive them, by which arrangement it is only necessary to press thefoot lever 27 and both of these disks are simultaneously withdrawn fromthe driver 7, after which the usual brakes, not shown, may be appliedand the car stopped while the engine continues to run.

One of the essential features of my invention is my simplified andimproved mechanism whereby the diflerential gearing, usually employed inmotor vehicles, is eliminated. In accomplishing this I have mounted apair of fingers 39' and 40 upon opposite sides of the wheel post 41whereby when the steering wheel 42 is turned to the left the finger 39engages the lever 42 and through the connection 43, lever arms 44 and 35of the knee lever 33 withdraws the friction disk 13 from engagement withthe driving disk 7, thus disconnecting the left rod 46 and the arms 47and 36 of the knee lever 34 the disk 14 is withdrawn from engagementwith the driver 7, at which time the vehicle is driven only through theleft hand wheel thus entirely obviating thenccessity of using thedifierential gearing usually employed.

The free ends of levers 42 and 45 are provided with set screws 48 and49, respectively, so that the distance between these ends and theengaging surfaces of the fingers 39 and 4000f the wheel post may bereadily adjusted so as to regulate the amount the steering wheel shallturn either one way or the other before it will disconnect one of thedriving wheels.

The connecting rods 31 and 32 are slotted at 50 and 51, respectively, sothat the knee levers 33 and 34 may be operated from the steering post towithdraw the individual disks 13 and 14 without interfering with theoperation of the foot lever 27.

The operation of my improved transmission and controlling mechanism maybe fur ther described as follows: In bringing the vehicle to rest thehandle of the lever 9 is moved backward sliding the driving disk 7 toits central or inoperative position, in which position the engine maycontinue to run without affecting the driving mechanism. When it isdesired to start ahead the lever 9 may be carried forward a notch at atimeuntil the desired speed leverage is obtained, after which the speedmay be controlled in the usual way by regulating the supply of gas tothe engine. The reverse is obtained by a continued rearward movement ofthe lever 9 carrying the driver disk back of the center of the twofriction disks 13 and 14. I p

The foot lever 27 may be used in the case of emergency when it isdesired to quickly release the engine from the driving mechanism andapply the brakes, which latter may be operated in the usual way byanother foot lever or other suitable means not shown. By controlling theengagement of the individual disks 13 and 14 with the driver 7 by meansof simply rotating the steering wheel 4, an extremely simple mechanismis provided for automatically taking care of the differential movementof'the driving wheels which occurs when the vehicle turns out of astraight course.

I do not wish to be restricted to the precise construction andarrangement of parts herein shown and described, nor to the variousdetails thereof, as the same may be modified or re-arranged in variousparticulars without departing from thespirit and scope of my invention,one practical embodiment of which has been herein illustrated anddescribed without attempting to show all of the various forms andmodifications in which the invention might be embodied.

Having thus described my invention, what I nections between said leversand the power 7 transmitting friction members whereby the saidsteeringpost may be operated to some extent without afl'ecting either ofthe said friction members, further movement of the steering post beingadapted to cause one of said fingers to actuate one of said levers andits connected friction member,

2. In a motor vehicle the combination of a driven shaft, a frictiondriving member slidably mounted on said shaft, power transmittingfriction members movable toward and from opposite sides of said drivingmember to be driven thereby when in contact therewith, means connectingeach driven member with its corresponding rear traction wheel, ahand-operating steering post, said post having fingers extending insubstanti ally opposite directions, levers having their swinging endsadjacentbut normally out of contact with said fingers, leversoperatively connected with said friction members to control theirrelationship with the driving member, links connecting thefirst-mentioned levers and the last mentioned levers, and independentmeans for simultaneously actuating bothof the levers which control thepositions ofthe power transmitting members so that both of the lattermay be'removed from operative connections with said driving member. Y

3. In a motor vehicle the combination of a driven shaft, a frictiondriving member slidably mounted on said shaft, power transmittingfriction members movable toward and from opposite sides of said drivingmember to be driven thereby when in contact therewith, means connectingeach driven member with its corresponding rear traction wheel, ahand-operating steering post, said post having fingers extending insubstanti ally opposite directions,levers having their swinging endsadjacent but normally out of contact with said fingers, links connectedto said levers, a shaft having a foot lever and also provided with twocrank arms, levers for shifting the positions of the power transmittingmembers relatively to the driving member, said shifting levers beingconnected to said links to be actuated thereby, and links connectingsaid shifting levers and crank arms whereby both of the powertransmitting members may be simultaneously moved toward or away from thedriving member.

4:. In a motor vehicle the combination of a driven shaft, a frictiondriving disk slidably mounted on said shaft, power transmitting frictiondisks arranged to yieldingly engage opposite sides of said driving disk,means connecting each driven disk with its corresponding rear vehiclewheel, a hand-operated steering post, engaging members on said post, apair of three-armed levers each having one arm operatively engaged withone of said driven disks, connections with a second arm of each of saidlevers adapted to be engaged by said engaging members to cause eitherone or the other of said levers to withdraw its individual disk fromengagement with said driving disk when the steering wheel post is turnedin guiding the vehicle, and means connected with the third arm of eachof said levers for actuating both levers simultaneously.

5. In a motor vehicle the combination of a driven shaft, a frictiondriving disk slidably mounted on said shaft, power transmitting frictiondisks arranged to yieldingly engage opposite sides of said driving disk,means connecting each driven disk with its corresponding rear vehiclewheel, a hand-operated steering post, engaging members on said post, athree-armed lever operatively engaged with each driven disk, connectionswith one arm of each of said levers adapted to be engaged by saidengaging members to cause either one or the otherof said levers towithdraw its individual disk from engagement with said driving disk whenthe steering wheel post is turned in guiding the vehicle, meansconnected with other arms of said levers for actuating both leverssimultaneously, and adjustable means for controlling the withdrawingaction of said driven disks.

In testimony whereof I affix my signature in presence of two witnesses.

DANIEL J. MGOSKER.

Witnesses:

HOWARD E. BARLOW, E. I. OGDEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

